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Hey!
I've had some issues with my head unit/stereo.
I had water ingress which destroyed my old amp (a XQK500104) and i replaced it with a new one bearing a slightly different part number (XQK500105).
After this i finally (at least 70% of the time) can get past the Land Rover screen (no blinking power led - it stays solid).
But now i cant select CD or TV. The buttons look normal, but nothing happens when i press it. Furthermore, the volume knob on the IHU does not do anything, but the steering wheel buttons work.
I've tried to bypass both the bluetooth and tv module, but to no avail.
Scanned with GAP IID and i get the following codes:
U2003-31 (28 ) Fibre optic communication bus - Frequency modulation/pulse width modulation failure - no signal (This one comes and goes)
U1A03-62 (2B) Vehicle configuration parameter - Algorithm based failure - signal compare failure
Anyone with a clever theory for a fix? Do i simply have to recode the ACM ECU for the new amp? (Which i guess i can't do with my GAP IID.
Might there be a false positive from one of the MOST modules? I've read that someone with a sort of similar situation experienced a fix from doing a MOST-self test, which I would do if I could only access the diagnostic mode. Would a hard reset (touching battery leads together) maybe solve the problem with accessing diagnostic mode?
Also, I cannot enter the diagnostic screen anymore. Holding the top center for 5-6 seconds and then the nav button wont do anything anymore.
Attaching an image from the last time I was able to enter the MOST diagnostic screen.
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30th Mar 2024 10:55pm
